Cloud SIM Architecture for Remote Authentication Without Local Storage

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Solution Overview

Problem

Current SIM technologies, whether physical (pSIM) or electronic (eSIM), face inefficiencies in logistics and delays due to manufacturing, distribution, and delivery processes, which are exacerbated by the need for physical presence within user equipment (UE) and reliance on dedicated memory storage, leading to performance sacrifices and logistical challenges.

Innovation Solution

A cloud-based SIM software system where the SIM content is stored remotely on a server, allowing UE to communicate with the cloud SIM over the air, eliminating the need for local storage and enabling real-time access through high-speed 5G connections, using adapted communication protocols for efficient data exchange.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If SIM content is stored locally in UE memory (eSIM), then authentication and network access are enabled, but logistics delays and delivery failures occur due to remote download requirements

Engineering Contradiction:

Improvenetwork authentication reliabilityVSAvoidlogistics delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts SIM functionality from local UE storage and relocates it to a cloud-based server. The SIM profile and authentication data are stored remotely on the server instead of being downloaded to and stored in UE memory, eliminating logistics delays while maintaining authentication reliability through cloud-based access.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a cloud-based server as an intermediary between the UE and the network operator. This server hosts the SIM functionality and mediates authentication requests, eliminating the need for physical or downloaded SIM storage while ensuring reliable network access through centralized cloud management.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If SIM content is downloaded to UE memory, then SIM functionality is provided, but memory shortage prevents storing multiple eSIMs

Engineering Contradiction:

Improvemulti-SIM capabilityVSAvoidmemory storage capacity

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent extracts SIM profiles from local UE storage and relocates them to cloud-based server storage. This allows the UE to access multiple SIM profiles remotely without consuming local memory capacity, enabling multi-SIM capability while preserving limited device storage for other purposes.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent moves SIM storage from the two-dimensional constraint of local UE memory to the virtually unlimited three-dimensional cloud storage space. This dimensional transition allows multiple SIM profiles to be stored and accessed without being constrained by device memory capacity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Reliability

If physical SIMs are manufactured and distributed, then network access is enabled, but manufacturing and distribution costs and delays increase

Engineering Contradiction:

Improvenetwork access availabilityVSAvoidSIM deployment efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the mechanical physical SIM card system with a cloud-based virtual SIM system. Instead of manufacturing, shipping, and physically installing SIM cards, the system uses electronic delivery of SIM profiles to a cloud server, eliminating manufacturing and distribution costs while maintaining network access availability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent uses digital copying of SIM profiles to the cloud server instead of physical SIM card manufacturing. Multiple instances of SIM functionality can be created and distributed electronically without the costs and delays of physical production and logistics.

Inventive Principle:

Principle #26Copying

4Ease of operation

If eSIM download is used, then SIM functionality is provided, but download failures and re-download requirements cause delays

Engineering Contradiction:

ImproveSIM setup convenienceVSAvoidsetup delay

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent extracts the SIM profile delivery process from the UE download mechanism and relocates it to a cloud server. The SIM profile is stored permanently on the server and accessed on-demand, eliminating download failures and re-download requirements while maintaining setup convenience through automated cloud-based provisioning.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12587834B2Cloud-based SIM

Publication Date: 2026.03.24 BOOST SUBSCRIBERCO LLC

AI summary

A computer-implemented method for communicating with a cloud SIM software. The method includes activating, on a user equipment (UE), a communication module, and connecting with a cloud SIM software located on a remote server. The method also includes sending, from the UE, a request for content to the cloud SIM software, and receiving, by the UE, the content from the cloud SIM software to a local chip on the UE to facilitate communication between the UE and one or more other UEs.